On 11/01/2013 10:22 PM, Nishanth Menon wrote:
On 10/25/2013 10:57 AM, Tero Kristo wrote: [...]diff --git a/drivers/clk/ti/clockdomain.c b/drivers/clk/ti/clockdomain.c new file mode 100644 index 0000000..1b3099e --- /dev/null +++ b/drivers/clk/ti/clockdomain.c @@ -0,0 +1,58 @@ +/* + * OMAP clockdomain support + * + * Copyright (C) 2013 Texas Instruments, Inc. + * + * Tero Kristo <t-kristo@xxxxxx> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk-provider.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/clk/ti.h> + +static void __init of_ti_clockdomain_setup(struct device_node *node) +{ + struct clk *clk; + struct clk_hw *clk_hw; + const char *clkdm_name = node->name; + int i; + int num_clks; + + num_clks = of_count_phandle_with_args(node, "clocks", "#clock-cells"); + + for (i = 0; i < num_clks; i++) { + clk = of_clk_get(node, i); + if (__clk_get_flags(clk) & CLK_IS_BASIC) { + pr_warn("%s: can't setup clkdm for basic clk %s\n", + __func__, __clk_get_name(clk)); + continue; + } + clk_hw = __clk_get_hw(clk); + to_clk_hw_omap(clk_hw)->clkdm_name = clkdm_name; + omap2_init_clk_clkdm(clk_hw);eventually, this can disappear ofcourse.. and that will pave way to remove the clock domain data to dts as well.. but yes, we have to find a proper home for this away from current location..+ } +} + +static struct of_device_id ti_clkdm_match_table[] __initdata = { + { .compatible = "ti,clockdomain" }, + { } +}; + +void __init ti_dt_clockdomains_setup(void)since we are using of_clk_get, it will be good to provide documentation w.r.t when the call is expected to be invoked.
I'll add some kerneldoc here. -Tero
+{ + struct device_node *np; + for_each_matching_node(np, ti_clkdm_match_table) { + of_ti_clockdomain_setup(np); + } +}
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